US3665135A - Metal clad isolator switches for high tension and double interruption - Google Patents

Metal clad isolator switches for high tension and double interruption Download PDF

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Publication number
US3665135A
US3665135A US62083A US3665135DA US3665135A US 3665135 A US3665135 A US 3665135A US 62083 A US62083 A US 62083A US 3665135D A US3665135D A US 3665135DA US 3665135 A US3665135 A US 3665135A
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US
United States
Prior art keywords
contact
switching
rods
support
metal clad
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Expired - Lifetime
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US62083A
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English (en)
Inventor
Rintje Boersma
Gijsbert Waldemar Irik
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COQ KANAALWEG NV
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COQ KANAALWEG NV
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
    • H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
    • H02B13/035—Gas-insulated switchgear
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H21/00—Switches operated by an operating part in the form of a pivotable member acted upon directly by a solid body, e.g. by a hand
    • H01H21/54—Lever switches with blade-type contact co-operating with one or two spring-clip contacts, e.g. knife switch
    • H01H21/58—Change-over switches without stable intermediate position
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
    • H01H3/42—Driving mechanisms, i.e. for transmitting driving force to the contacts using cam or eccentric
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
    • H01H31/26—Air-break switches for high tension without arc-extinguishing or arc-preventing means with movable contact that remains electrically connected to one line in open position of switch
    • H01H31/32—Air-break switches for high tension without arc-extinguishing or arc-preventing means with movable contact that remains electrically connected to one line in open position of switch with rectilinearly-movable contact
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
    • H01H31/003—Earthing switches

Definitions

  • a metal clad isolator switch for h1gh voltage and double lnterruption comprising two permanently electrically intercon- 1 Foreign Applicafion Priority Data nected mechanically coupled, axially movable switching rods 'Feb. 27, 1970 Netherlands ..7002s03 dimmed resPect an angle which is 7 than 180 and each cooperating with their one end portion 52 us. c1. ..200/163, 200/48 R, 200/148 F with on individual ono of two inoulaiodly moumod fixed 511 1111. c1.
  • the invention relates to a metal clad isolator switch for high voltage and double interruption, comprising a metal envelope intended to be connected with earth, within which two spaced apart fixed contacts and two permanently electrically interconnected, mechanically coupled, axially movable switching rods are provided in the space left between the fixed contacts and which are supported by an electrically conductive support within which driving means are insulatedly accommodated, the first one of said switching rods cooperating with one fixed contact and the second one thereof cooperating with the other fixed contact, and a device adapted to earth said support and the switching rods.
  • the invention has the object to provide a double interrupting isolator switch, in which an individually movable switching contact for the earthing device and locking means between said switching contact and the switching rods of the isolator switch can be dispensed with and in which a relatively compact construction is possible.
  • This is achieved in that the switching rods are directed in respect of each other at an angle which is smaller than 180, the path of the first switching rod extending on both sides of the line coinciding with the longitudinal axis of the second switching rod and the first switching rod contacting in its one end position the fixed contact cooperating with said switching rod with its one end portion and in its other end position a third fixed contact with its other end portion.
  • this third fixed contact is connected with earth the first switching rod forms at the same time the movable switching contact of the earthing device.
  • the two switching rods and the movable earthing contact are formed by one and the same switching rod, locking means between said earthing contact and the switching rods are superfluous.
  • the switching rods are directed in respect of each other at rightangles.
  • This construction of the isolator switch makes it relatively compact and facilitates the assembly of the isolator switch with other parts of a metal clad switching plant.
  • the most compact construction is obtained, that means the cross dimensions of the earthed envelope can be a minimum, when the longitudinal axes of the switching rods lie in one and the same plane.
  • FIG. 1 an axial sectional view of a first embodiment of a double interrupting isolator switch according to the invention
  • FIGS. 2, 3 and 4 diagrammatical views of three difi'erent positions of the cooperating contacts and the driving mechanism of a second embodiment of such an isolator switch
  • FIGS. 5, 6, 7 and 8 diagrammatical views of four different positions of the cooperating contacts and the driving mechanism of a third embodiment of such an isolator switch and FIG. 9 a sectional view in line IX-IX in FIG. 5.
  • FIG. 1 an metal envelope connected with earth is designated by 1.
  • Two fixed contacts 2 and 3 and two axially movable switching rods 4 and 5 are insulatedly accommodated in said envelope. These fixed contacts 2, 3 and these switching rods 4, 5 form together the essential part of a double interrupting isolator switch.
  • the switching rod 4 cooperates with the fixed contact 2 and the switching rod 5 cooperates with the fixed contact 3.
  • the switching rods 4, 5 are supported and electrically conductively interconnected by a metal support 6 which is kept in place in the envelope 1 by an insulator 7.
  • the path of the switching rod 4 intersects the extension of the longitudinal axis of the switching rod 5.
  • the switching rod 4 cooperates with its end remote from the fixed contact 2 with a third fixed contact 8, which is directly attached to the envelope 1 and thereby also connected with earth.
  • the isolator switch In the shown position the isolator switch is in its open condition and the support 6 and the switching rods 4, 5 are connected with earth. Consequently, the switching rod 4 of the isolator switch forms at the same time the movable switching contact of the earthing switch 4, 8.
  • the support 6 is provided with a driving mechanism which consists of a rotatable driving shaft 9 adapted to be operated from the outside and carrying a bevel toothed wheel 10 which meshes with a bevel toothed wheel 11 fixed to a screw spindle 12 extending centrally in the switching rod 5.
  • This screw spindle extends through an opening provided with corresponding femal thread of a partition 13 provided in the switching rod 5 and said spindle is coupled through cooperating bevel toothed wheels 14, 15 with a second screw spindle 16 which extends through an opening provided with corresponding femal thread of an arm 17 attached to the switching rod 4.
  • the switching rods 4 and 5 are thus mechanically coupled and they will be moved in their axial directions when the driving shaft 9 is rotated.
  • the driving mechanism of the isolator switch shown in FIG. 1 comprising screw spindles makes it necessary to move the switching rod 5 through a distance which is equal to the stroke of the switching rod 4.
  • the stroke of each one of the two switching rods is equal to the sum of the stroke, which is necessary to achieve a safe separation between a fixed contact 2, 3 and the switching contact 4, 5 cooperating therewith in the isolator switch, and the stroke, which is necessary to ground the support 6 and the switching rods 4, 5.
  • the stroke of the switching rod 5 becomes unnecessarily large.
  • the isolator switch illustrated in FIGS. 2, 3, 4 is provided with a driving mechanism restricting the stroke of the switching rod 18 to the dimension which is necessary to achieve said safe separation.
  • the switching rod 19 is provided with a rack 20 which is engaged by a toothed wheel 22 fixed to the driving shaft 21.
  • Mounted on the driving shaft 21 is also a crank arm 23 which is coupled by a coupling rod 24 with the switching rod 18.
  • the isolator switch In the position shown in FIG. 2 the isolator switch is in its open condition and the switching rods 18 and 19 are connected with the earthed fixed contact 25. If the switch must be closed the driving shaft is rotated counter-clockwise. During the closing operation the intermediate position shown in FIG. 3 is passed. In this intermediate position the switching rod 19 is free from the contact 25 but it is still at a safe distance from the fixed contact 26 of the switch. The switching rod 18, which during the first part of the closing operation is hardly moved, is then also still at a safe distance from the fixed contact 27 of the switch. Only during the second part of the closing operation the switching rods 18 and 19 are moved towards the fixed contacts 27 and 26 and brought into their closed positions as illustrated in FIG. 4.
  • the two axially movable switching rods 28, 29 intercross.
  • the switching rod 28 cooperates with its one end portion with the fixed contact 30 and with its other end portion with the fixed contact 31, whereas the switching rod 29 cooperates on one hand with the fixed contact 32 and on the other hand with the fixed contact 33.
  • the fixed contacts 31 and 33 are both connected with earth.
  • the driving mechanism of this isolator switch comprises a driving shaft 34 provided with a crank arm 35 and a toothed wheel 36, an auxiliary shaft 37 provided with a crank arm 38 and a toothed wheel 39 meshing with the toothed wheel 36.
  • the crank arms 35 and 38 are of the same lengths and the diameter of the toothed wheel 36 is twice the diameter of the toothed wheel 39.
  • crank arm 38 engages with a peg 40 a slot 41 of a transverse beam 42 attached to the switching rod 28 and the crank arm 35 engages with a peg 43 a slot 44 of a beam attached to the switching rod 29 and having a straight portion 45' which is transversely directed to the switching rod 29 and an other portion 45" in the form of a quarter of a circle, of which the radius is equal to the crank arm 35.
  • the isolator switch In the position shown in FIG. 5 the isolator switch is open and the switching rods 28, 29 are connected with earth through the fixed contact 31. If the driving shaft 34 is rotated counter-clockwise from the position shown in FIG. 5 through an angle of 90 the position illustrated in FIG. 6 is reached. In said position the switch is closed. A further counter-clockwise rotation of the driving shaft through an angle of 90 puts the switch into the position shown in FIG. 7, in which the external conductor, e.g., a cable, connected to the fixed contact 32 of the switch is grounded through the contact 31. If the driving shaft 34 is rotated clockwise from the position shown in FIG. 5 through an angle of 90 the switch will be put into the position shown in FIG. 8, in which the conductor, e.g., the connecting conductor leading to other parts of the switching plant, connected to the fixed contact 30 of the switch is earthed through the fixed contact 33. 7
  • the fixed contact 33 may be connected with a part of the switching plant instead with earth. If, for instance, the fixed contacts 32 and 33 are connected with the conductors of different busbar systems the part of the switching plant which is connected with the fixed contact 30 can be connected by the isolator switch illustrated in FIGS. 5-9 either with one or with the other busbar system.
  • a metal clad isolator switch for high voltage and double interruption comprising a metal envelope intended to be connected with earth, at least three spaced apart fixed electrical contacts, two permanently electrically interconnected, mechanically coupled, axially movable switching rods provided in the space left between said fixed contacts, driving means associated with said movable switching rods and an electrically conductive support, said support carrying said switching rods and said driving means, at least two of said fixed contacts, said switching rods, said support and said driving means being insulatedly mounted in said envelope, said switching rods being directed in respect of each other at an angle which is smaller than 180", at least the path of the first one of said switching rods extending on both sides of the line coinciding with the longitudinal axis of the second one of said switching rods, each switching rod cooperating with an individual one of said insulatedly mounted fixed contacts and said first switching contact cooperating also with said third contact and contacting in its one end position the respective insulatedly mounted fixed contact with its one end portion and in its other end position said third fixed contact with its other end portion
  • a metal clad switch for double interruption of high voltage electrical systems comprising in combination;
  • an electrically conductive metal envelope having a first tubular branch and a second tubular branch extending at an angle to said first branch;
  • an electrically conductive support disposed within said envelope between said branches and spaced from said ground contact as well as both said second and said third contacts, said support having a first bore extending therethrough aligned with said first branch along the axis of alignment between said second contact and said ground contact and having a second bore aligned with said second branch and said third contact;
  • a first switching rod slidably received in said first bore and having a length less than said selected spacing but sufficient to bridge between said support and either said second contact or said ground contact;
  • a second switching rod slidably received in said second bore and having a length sufiicient to bridge between said support and said third contact; and a means for simultaneously actuating said first and second switching rods axially between first positions connecting said second and third contacts through said switching I rods and said support and second positions in which said first switching rod electrically connects said support to said ground contact and both switching rods are separated from the respective second and third contacts.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Trip Switchboards (AREA)
US62083A 1970-02-27 1970-08-07 Metal clad isolator switches for high tension and double interruption Expired - Lifetime US3665135A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7002803A NL7002803A (cg-RX-API-DMAC10.html) 1970-02-27 1970-02-27

Publications (1)

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US3665135A true US3665135A (en) 1972-05-23

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US62083A Expired - Lifetime US3665135A (en) 1970-02-27 1970-08-07 Metal clad isolator switches for high tension and double interruption

Country Status (9)

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US (1) US3665135A (cg-RX-API-DMAC10.html)
JP (1) JPS5128141B1 (cg-RX-API-DMAC10.html)
AT (1) AT300940B (cg-RX-API-DMAC10.html)
BE (1) BE751967A (cg-RX-API-DMAC10.html)
DE (1) DE2028327B2 (cg-RX-API-DMAC10.html)
FR (1) FR2080311A5 (cg-RX-API-DMAC10.html)
GB (1) GB1275215A (cg-RX-API-DMAC10.html)
NL (2) NL7002803A (cg-RX-API-DMAC10.html)
SE (1) SE371326B (cg-RX-API-DMAC10.html)

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3801768A (en) * 1972-03-22 1974-04-02 Westinghouse Electric Corp Grounding switch
JPS4939068A (cg-RX-API-DMAC10.html) * 1972-08-25 1974-04-11
US3876846A (en) * 1972-08-16 1975-04-08 Ite Imperial Corp Combination ground and test switch apparatus for pressurized-gas-insulated high voltage systems
US3886336A (en) * 1974-03-18 1975-05-27 Coq Bv Metal clad switch gear for high voltages
US3987260A (en) * 1974-12-05 1976-10-19 I-T-E Imperial Corporation Ground and test connection for SF6 insulated bus
US4082933A (en) * 1976-03-22 1978-04-04 General Electric Company Stab connector for enclosed electric bus apparatus
DE19632574A1 (de) * 1996-08-13 1998-02-19 Abb Patent Gmbh Trenn-Erderschalter für eine metallgekapselte, gasisolierte Hochspannungsschaltanlage
US5936213A (en) * 1997-02-27 1999-08-10 Gec Alsthom T & D Sa Operating mechanism for a five-pole phase inverter isolating switch
US6015960A (en) * 1997-10-02 2000-01-18 Gec Alsthom T&D Sa Compressed gas interrupter with a rack mechanism
US6127641A (en) * 1996-08-13 2000-10-03 Siemens Aktiengesellschaft High-voltage switchgear
WO2006131560A1 (en) * 2005-06-10 2006-12-14 Areva T & D Ag An electric switch having an annular stationary contact
DE102006001241A1 (de) * 2006-01-06 2007-07-12 Siemens Ag Schaltstelle eines elektrischen Schaltgerätes sowie Verfahren zum Bewegen eines Schaltstückes einer Schaltstelle
DE102006053376A1 (de) * 2006-11-10 2008-05-15 Abb Technology Ag Elektrische Hochspannugnsanlage
CN101582345A (zh) * 2008-05-16 2009-11-18 阿海珐T&D有限公司 中压和高压隔离开关断路器
EP2254135A1 (de) 2009-05-20 2010-11-24 ABB Technology AG Metallgekapselter, mehrphasiger, gasisolierter Sammelschienentrenn- und Erdungsschalter
DE102010004981B3 (de) * 2010-01-18 2011-07-21 Abb Technology Ag Metallgekapselter, gasisolierter kombinierter Trenn- und Erdungsschalter
WO2011085820A1 (de) * 2010-01-18 2011-07-21 Abb Technology Ag Kapselungsbaustein mit trennschaltern für eine gasisolierte schaltanlage
CN102254730A (zh) * 2011-07-12 2011-11-23 平高集团有限公司 三工位隔离接地开关
CN103377849A (zh) * 2012-04-28 2013-10-30 西门子公司 三相共箱隔离接地开关
EP2670009A4 (en) * 2011-01-25 2015-05-27 Mitsubishi Electric Corp SWITCH

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2494491A1 (fr) * 1980-11-17 1982-05-21 Merlin Gerin Sectionneur en ligne pour une installation electrique blindee
DE3143279C2 (de) * 1981-10-31 1985-08-01 Brown, Boveri & Cie Ag, 6800 Mannheim Erdungsvorrichtung an einer isolierstoffgekapselten Mittelspannungs-Schaltanlage
DE10205334C1 (de) * 2002-02-06 2003-11-13 Siemens Ag Elektrische Schaltanordnung mit einem ersten Schaltkontakt und mit einem zweiten Schaltkondakt
FR2933529B1 (fr) 2008-07-07 2010-09-03 Areva T & D Ag Dispositif de sectionnement pour separer ou connecter deux parties d'un circuit electrique parmi lesquelles un transformateur de tension
DE102009036590B3 (de) * 2009-08-07 2011-03-31 Abb Technology Ag Gasisolierte Hochspannungsschaltanlage
FR3006497B1 (fr) 2013-05-31 2016-12-30 Alstom Technology Ltd Dispositif de sectionnement ameliore et poste electrique a isolation gazeuse comprenant un tel dispositif

Cited By (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3801768A (en) * 1972-03-22 1974-04-02 Westinghouse Electric Corp Grounding switch
US3876846A (en) * 1972-08-16 1975-04-08 Ite Imperial Corp Combination ground and test switch apparatus for pressurized-gas-insulated high voltage systems
JPS4939068A (cg-RX-API-DMAC10.html) * 1972-08-25 1974-04-11
US3886336A (en) * 1974-03-18 1975-05-27 Coq Bv Metal clad switch gear for high voltages
US3987260A (en) * 1974-12-05 1976-10-19 I-T-E Imperial Corporation Ground and test connection for SF6 insulated bus
US4082933A (en) * 1976-03-22 1978-04-04 General Electric Company Stab connector for enclosed electric bus apparatus
US6127641A (en) * 1996-08-13 2000-10-03 Siemens Aktiengesellschaft High-voltage switchgear
DE19632574A1 (de) * 1996-08-13 1998-02-19 Abb Patent Gmbh Trenn-Erderschalter für eine metallgekapselte, gasisolierte Hochspannungsschaltanlage
EP0824264A3 (de) * 1996-08-13 1999-03-24 ABBPATENT GmbH Trenn-Erderschalter für eine metallgekapselte, gasisolierte Hochspannungsschaltanlage
US5936213A (en) * 1997-02-27 1999-08-10 Gec Alsthom T & D Sa Operating mechanism for a five-pole phase inverter isolating switch
US6015960A (en) * 1997-10-02 2000-01-18 Gec Alsthom T&D Sa Compressed gas interrupter with a rack mechanism
WO2006131560A1 (en) * 2005-06-10 2006-12-14 Areva T & D Ag An electric switch having an annular stationary contact
FR2887070A1 (fr) * 2005-06-10 2006-12-15 Areva T & D Ag Commutateur electrique comportant un contact fixe annulaire
US7982143B2 (en) 2005-06-10 2011-07-19 Areva T & D Ag Electric switch having an annular stationary contact
CN101194330B (zh) * 2005-06-10 2011-11-23 阿雷瓦T&D股份有限公司 具有环形静态接触件的电开关
DE102006001241A1 (de) * 2006-01-06 2007-07-12 Siemens Ag Schaltstelle eines elektrischen Schaltgerätes sowie Verfahren zum Bewegen eines Schaltstückes einer Schaltstelle
DE102006053376A1 (de) * 2006-11-10 2008-05-15 Abb Technology Ag Elektrische Hochspannugnsanlage
CN101582345B (zh) * 2008-05-16 2013-11-20 阿海珐T&D有限公司 中压和高压隔离开关断路器
CN101582345A (zh) * 2008-05-16 2009-11-18 阿海珐T&D有限公司 中压和高压隔离开关断路器
EP2254135A1 (de) 2009-05-20 2010-11-24 ABB Technology AG Metallgekapselter, mehrphasiger, gasisolierter Sammelschienentrenn- und Erdungsschalter
US8552317B2 (en) 2009-05-20 2013-10-08 Abb Technology Ag Metal-encapsulated, polyphase, gas-insulated busbar switch disconnector and earthing switch
US8848345B2 (en) 2010-01-18 2014-09-30 Abb Technology Ag Switchgear assembly module and switchgear assembly
CN102474083B (zh) * 2010-01-18 2015-04-15 Abb技术有限公司 用于气体绝缘的开关设备的带有分离开关的封装组件
CN102474083A (zh) * 2010-01-18 2012-05-23 Abb技术有限公司 用于气体绝缘的开关设备的带有分离开关的封装组件
CN102714107A (zh) * 2010-01-18 2012-10-03 Abb技术有限公司 金属封装的气体绝缘的组合式断路及接地开关
WO2011085820A1 (de) * 2010-01-18 2011-07-21 Abb Technology Ag Kapselungsbaustein mit trennschaltern für eine gasisolierte schaltanlage
CN102714107B (zh) * 2010-01-18 2015-08-19 Abb技术有限公司 金属封装的气体绝缘的组合式断路及接地开关
WO2011086188A1 (de) 2010-01-18 2011-07-21 Abb Technology Ag Metallgekapselter, gasisolierter kombinierter trenn- und erdungsschalter
DE102010004981B3 (de) * 2010-01-18 2011-07-21 Abb Technology Ag Metallgekapselter, gasisolierter kombinierter Trenn- und Erdungsschalter
US8624146B2 (en) 2010-01-18 2014-01-07 Abb Technology Ag Metal-encapsulated, gas-insulated, combined switch disconnector and earthing switch
EP2670009A4 (en) * 2011-01-25 2015-05-27 Mitsubishi Electric Corp SWITCH
US9355796B2 (en) 2011-01-25 2016-05-31 Mitsubishi Electric Corporation Switch
CN102254730B (zh) * 2011-07-12 2013-11-27 平高集团有限公司 三工位隔离接地开关
CN102254730A (zh) * 2011-07-12 2011-11-23 平高集团有限公司 三工位隔离接地开关
CN103377849A (zh) * 2012-04-28 2013-10-30 西门子公司 三相共箱隔离接地开关
CN103377849B (zh) * 2012-04-28 2016-08-17 西门子公司 三相共箱隔离接地开关

Also Published As

Publication number Publication date
DE2028327B2 (de) 1972-01-20
NL7002803A (cg-RX-API-DMAC10.html) 1971-08-31
JPS5128141B1 (cg-RX-API-DMAC10.html) 1976-08-17
SE371326B (cg-RX-API-DMAC10.html) 1974-11-11
FR2080311A5 (cg-RX-API-DMAC10.html) 1971-11-12
BE751967A (nl) 1970-11-16
GB1275215A (en) 1972-05-24
AT300940B (de) 1972-08-10
NL135417C (cg-RX-API-DMAC10.html)
DE2028327A1 (de) 1971-09-23

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